Retaining most of the features of the original SU-16 rifles by Kel-Tec, the "Charlie" model features an integrated bipod, Picatinny rail, and accepts AR-15/M16 magazines. The SU-16C features a true folding stock and is capable of being fired with the stock folded. A reciprocating dust cover and case deflector operating handle are also included, and the medium weight barrel is 16" long and features a 1/2x28 thread pitch at the muzzle. The bore and chamber are chrome lined.